Hazardous operations 270500Z to 270900Z apr, alternate 0500Z to 0900Z daily 28 apr thru 12 may: a. within 16…
North Pacific Ocean · HYDROPAC 1133/13
What this record establishes
Archived notice · 2013-04-23 04:11Z
This notice comes from the historical archive. Its archived status does not establish when or how the reported situation ended.
- Source and dates
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · NAVAREA XI 221153Z APR 13.. Issued 2013-04-23 01:13Z. First collected 2026-08-17 13:38Z; last seen in collection 2026-08-17 15:46Z. Collection dates record ingestion, not a new incident or a fresh field observation.
- Location covered
- North Pacific Ocean. The map shows an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.
Related notices and cancellation links
- Cancel HYDROPAC 1134/13, assistance receivedlater cancellation notice
These reports were linked by category and sea, with positions within 30 nautical miles and issue dates within 30 days of another report's recorded in-force span. Links can extend through other members, so the full group can cover a larger area or period. Proximity does not confirm that they describe one incident.
- HYDROPAC 1127/132013-04-22 · Archived notice
- HYDROPAC 1133/13 · this notice2013-04-23 · Archived notice
- HYDROPAC 1327/132013-05-09 · Archived notice
Current notices and reporting history in the North Pacific Ocean →
Activity windows · 16 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2013-04-27 05:00Z | 2013-04-27 09:00Z | — | 4 h |
| 2013-04-28 05:00Z | 2013-04-28 09:00Z | — | 4 h |
| 2013-04-29 05:00Z | 2013-04-29 09:00Z | — | 4 h |
| 2013-04-30 05:00Z | 2013-04-30 09:00Z | — | 4 h |
| 2013-05-01 05:00Z | 2013-05-01 09:00Z | — | 4 h |
| 2013-05-02 05:00Z | 2013-05-02 09:00Z | — | 4 h |
| 2013-05-03 05:00Z | 2013-05-03 09:00Z | — | 4 h |
| 2013-05-04 05:00Z | 2013-05-04 09:00Z | — | 4 h |
| … 8 more | |||
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2013-04-23 01:13Z
- status
- Archived notice
- self-cancels
- 2013-05-12 10:00Z
- authority
- NAVAREA XI 221153Z APR 13.
- NAVAREA
- NAVAREA XI · named as the source of this relay
- sea
- North Pacific Ocean
- position
- 11.500, 168.125
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
NORTH PACIFIC.
MARSHALL ISLANDS.
MISSILES.
1. HAZARDOUS OPERATIONS 270500Z TO 270900Z APR,
ALTERNATE 0500Z TO 0900Z DAILY 28 APR THRU 12 MAY:
A. WITHIN 16 MILES OF 09-54N 164-54E.
B. IN AREA BOUND BY
09-36N 167-12E, 09-24N 167-12E,
09-18N 167-30E, 09-30N 167-30E.
C. IN AREA BOUND BY
09-48N 167-30E, 09-18N 167-24E,
09-18N 167-30E, 09-48N 167-42E.
D. IN AREA BOUND BY
12-12N 168-00E, 10-48N 167-30E,
10-48N 168-12E, 12-12N 168-48E.
2. CANCEL THIS MSG 121000Z MAY 13.
Reading this warning
- Missile firing
- Missile tests or exercises, with the danger area and times during which missiles may be in flight or falling.
- Hazardous operations
- NGA's heading for activities that make an area dangerous — most often rocket launches, space debris and weapons firings, and some open-ended danger areas.
- Date-time group (DTG)
- A compact UTC timestamp — day, hour and minute followed by Z — such as 201500Z for the 20th at 15:00 UTC.
- Within a radius of
- A circular area — every position within a stated distance of a point.
- Position (degrees and minutes)
- How warnings write positions: degrees, a hyphen, then minutes, with N/S and E/W — 49-40.8N 003-43.8W.
- Area bound by
- Introduces a list of positions that are the corners of an area — the polygon the warning applies to.
- CANCEL THIS MSG
- The warning's own expiry: a line telling the reader when the message cancels itself.
Collected reports in this area · missile & rocket hazards
27 within 180 nm since 2010 · 0 in the last 12 months · 0 listed in force now
Counts include repeat notices about the same situation. NGA archive coverage ends 2024-05; live collection began 2026-08-17. The period between them is incomplete. An empty year is not evidence that no hazards occurred.
- Hazardous operations, rocket launching 210830Z to 211430Z jun, alternate 0830Z to 1430Z daily 22 thru 25 jun…2021-06-16
- Hazardous operations 170839Z to 171639Z dec, alternate 180839Z to 181723Z and 190923Z to 191723Z dec: a. in…2013-12-13
- Hazardous operations 170839Z to 171639Z dec, alternate 190923Z to 191723Z dec: a. in area bound by 09-17N…2013-12-12
- Hazardous operations 260901Z to 261701Z sep, alternate 270901Z to 271701Z sep: a. in area bound by 08-44N…2013-09-22
- Hazardous operations 220901Z to 221701Z sep, alternate 230901Z to 231501Z sep: a. in area bound by 09-16N…2013-09-17
- Hazardous operations 0200Z to 0730Z daily 09 thru 11 sep in areas bound by: a. 15-14N 168-01E, 14-23N…2013-09-04
Month of issue in the collected archive
All available years combined. Uneven collection and repeat bulletins affect these counts; this chart does not measure the seasonality or probability of incidents.
Nearby notices listed in force · within 120 nm
No other collected notice is currently listed in force within this radius. This does not establish safe conditions.
Worldwide in the collected sources
8 missile & rocket hazards listed in force · see all
Record snapshot 2026-10-03 02:07Z; source collection times vary.
Missiles
Missile firings, rocket launches and space debris re-entry areas. All current missile & rocket hazards →
Not for navigation. This is a re-rendering of an official navigational warning for awareness; mariners must use official NAVAREA broadcasts and their national MSI service.